<template>
    <div>
      <div>
        <!--富文本编辑器组件-->
        <quill-editor
            v-model="formData.content"
            ref="QuillEditor"
            class="editor"
            :options="editorOption"
            @blur="onEditorBlur($event)"
            @focus="onEditorFocus($event)"
            @ready="onEditorReady($event)"
        >
        </quill-editor>
        <el-upload
            class="quill-upload"
            :action="upload.url"
            :headers="{'token':getToken()}"
            :before-upload="beforeUpload"
            :on-success="quillSuccess"
            ref="upload"
        >
        </el-upload>
      </div>
    </div>
  </template>
  <script>
    import { quillEditor } from 'vue-quill-editor'
    // import Delta from 'quill-delta'
    import 'quill/dist/quill.core.css';
    import 'quill/dist/quill.snow.css';
    import 'quill/dist/quill.bubble.css';
    import * as Quill from 'quill' //引入编辑器
    import { ImageDrop } from 'quill-image-drop-module';
    import ImageResize from "quill-image-resize-module";
    Quill.register("modules/imageResize", ImageResize);
    import {container, ImageExtend, QuillWatch} from 'quill-image-extend-module'
    Quill.register('modules/ImageExtend', ImageExtend)
    Quill.register('modules/imageDrop', ImageDrop);
    const upload = reactive<UploadOption>({
  headers: globalHeaders(),
  url: import.meta.env.VITE_APP_BASE_API + '/resource/oss/upload'
});
    const toolbarOptions = [
      ['bold', 'italic', 'underline', 'strike'],        // 加粗，斜体，下划线，删除线
      ['blockquote', 'code-block'],                     //引用，代码块
      // [{ 'header': 1 }, { 'header': 2 }],               // 几级标题
      [{ 'list': 'ordered' }, { 'list': 'bullet' }],    // 有序列表，无序列表
      // [{ 'script': 'sub' }, { 'script': 'super' }],     // 下角标，上角标
      [{ 'indent': '-1' }, { 'indent': '+1' }],         // 缩进
      // [{ 'direction': 'rtl' }],                         // 文字输入方向
      [{ 'size': ['small', false, 'large', 'huge'] }],  // 字体大小
      [{ 'header': [1, 2, 3, 4, 5, 6, false] }],        // 标题
      [{ 'color': [] }, { 'background': [] }],          // 颜色选择
      [{ 'font': ['SimSun', 'SimHei', 'Microsoft-YaHei', 'KaiTi', 'FangSong', 'Arial'] }], // 字体
      [{ 'align': [] }],    // 居中
      ['clean'],            // 清除样式,
      ['link'],   // 上传图片、上传视频
      ['myButton'],
    ]
  
    // toolbar标题
    const titleConfig = [
      { Choice: '.ql-insertMetric', title: '跳转配置' },
      { Choice: '.ql-bold', title: '加粗' },
      { Choice: '.ql-italic', title: '斜体' },
      { Choice: '.ql-underline', title: '下划线' },
      { Choice: '.ql-header', title: '段落格式' },
      { Choice: '.ql-strike', title: '删除线' },
      { Choice: '.ql-blockquote', title: '块引用' },
      { Choice: '.ql-code', title: '插入代码' },
      { Choice: '.ql-code-block', title: '插入代码段' },
      { Choice: '.ql-font', title: '字体' },
      { Choice: '.ql-size', title: '字体大小' },
      { Choice: '.ql-list[value="ordered"]', title: '编号列表' },
      { Choice: '.ql-list[value="bullet"]', title: '项目列表' },
      { Choice: '.ql-direction', title: '文本方向' },
      { Choice: '.ql-header[value="1"]', title: 'h1' },
      { Choice: '.ql-header[value="2"]', title: 'h2' },
      { Choice: '.ql-align', title: '对齐方式' },
      { Choice: '.ql-color', title: '字体颜色' },
      { Choice: '.ql-background', title: '背景颜色' },
      { Choice: '.ql-image', title: '图像' },
      { Choice: '.ql-video', title: '视频' },
      { Choice: '.ql-link', title: '添加链接' },
      { Choice: '.ql-formula', title: '插入公式' },
      { Choice: '.ql-clean', title: '清除字体格式' },
      { Choice: '.ql-script[value="sub"]', title: '下标' },
      { Choice: '.ql-script[value="super"]', title: '上标' },
      { Choice: '.ql-indent[value="-1"]', title: '向左缩进' },
      { Choice: '.ql-indent[value="+1"]', title: '向右缩进' },
      { Choice: '.ql-header .ql-picker-label', title: '标题大小' },
      { Choice: '.ql-header .ql-picker-item[data-value="1"]', title: '标题一' },
      { Choice: '.ql-header .ql-picker-item[data-value="2"]', title: '标题二' },
      { Choice: '.ql-header .ql-picker-item[data-value="3"]', title: '标题三' },
      { Choice: '.ql-header .ql-picker-item[data-value="4"]', title: '标题四' },
      { Choice: '.ql-header .ql-picker-item[data-value="5"]', title: '标题五' },
      { Choice: '.ql-header .ql-picker-item[data-value="6"]', title: '标题六' },
      { Choice: '.ql-header .ql-picker-item:last-child', title: '标准' },
      { Choice: '.ql-size .ql-picker-item[data-value="small"]', title: '小号' },
      { Choice: '.ql-size .ql-picker-item[data-value="large"]', title: '大号' },
      { Choice: '.ql-size .ql-picker-item[data-value="huge"]', title: '超大号' },
      { Choice: '.ql-size .ql-picker-item:nth-child(2)', title: '标准' },
      { Choice: '.ql-align .ql-picker-item:first-child', title: '居左对齐' },
      { Choice: '.ql-align .ql-picker-item[data-value="center"]', title: '居中对齐' },
      { Choice: '.ql-align .ql-picker-item[data-value="right"]', title: '居右对齐' },
      { Choice: '.ql-align .ql-picker-item[data-value="justify"]', title: '两端对齐' }
    ]
    export default {
      name: 'addarticle',
      components: {
        quillEditor
      },
      data () {
        return {
          uploadUrl: 'http://localhost:9090/file/upload', // 上传的图片服务器地址
          headers: {
            Authorization: 'Bearer ' + this.getToken(),
          },
          formData: {
            content: '' // `<h1 style="text-align: center;">Welcome to the TinyMCE demo!</h1>`
          },
          Quill: null,
          editorOption: {
            placeholder: '请在这里输入',
            theme: 'snow', //主题 snow/bubble
            modules: {
              history: {
                delay: 1000,
                maxStack: 50,
                userOnly: false
              },
              toolbar: {
                container: toolbarOptions,
                handlers: {
                  myButton: this.showHandle,
                }
              },
              // 图片拖拽上传
              imageDrop:true,
              // 放大缩小
              imageResize:{
                displaySize: true
              },
            }
          }
        }
      },
      mounted () {
        this.initButton()
        this.initTitle()
      },
      methods: {
        getToken() {
          if (localStorage.getItem("userInfo")) {
            return JSON.parse(localStorage.getItem("userInfo")).token
          }
        },
  
        initTitle () {
          document.getElementsByClassName('ql-editor')[0].dataset.placeholder = ''
          for (let item of titleConfig) {
            let tip = document.querySelector('.quill-editor ' + item.Choice)
            if (!tip) continue
            tip.setAttribute('title', item.title)
          }
        },
  
        showHandle () {
          // this.$message.success('这是自定义工具栏的方法！目前没有功能哦')
          // 获取到Quill实例
          this.Quill=this.$refs.QuillEditor.quill
          this.$refs.upload.$children[0].$refs.input.click()
        },
  
        // 自定义按钮内容初始化
        initButton () {
          const editorButton = document.querySelector('.ql-myButton')
          editorButton.innerHTML = '<i class="el-icon-picture" style="font-size: 18px;color:black"></i>'
        },
  
        // 失去焦点
        onEditorBlur (editor) { },
  
        // 获得焦点
        onEditorFocus (editor) {
        },
  
        // 开始
        onEditorReady (editor) { },
  
        beforeUpload(res, file) {
          console.log('HRichText upload before')
        },
  
  
        quillSuccess(res, file) {
          if (file.status === 'success') {
            // 获取光标所在位置
            let length = this.$refs.QuillEditor.quill.getSelection().index
            // 插入图片  res.url为服务器返回的图片地址
            this.Quill.insertEmbed(length, 'image', res)
            // 调整光标到最后
            this.$refs.QuillEditor.quill.setSelection(length + 1)
          } else {
            this.$message.error('图片插入失败')
          }
        },
      }
    }
  </script>
  
  <style>
  p {
    margin: 10px;
  }
  
  .edit_container,
  .quill-editor {
    height: 300px;
  }
  
  .ql-snow .ql-picker.ql-size .ql-picker-label::before,
  .ql-snow .ql-picker.ql-size .ql-picker-item::before {
    content: "14px";
  }
  
  .ql-snow .ql-picker.ql-size .ql-picker-label[data-value="small"]::before,
  .ql-snow .ql-picker.ql-size .ql-picker-item[data-value="small"]::before {
    content: "10px";
  }
  .ql-snow .ql-picker.ql-size .ql-picker-label[data-value="large"]::before,
  .ql-snow .ql-picker.ql-size .ql-picker-item[data-value="large"]::before {
    content: "18px";
  }
  .ql-snow .ql-picker.ql-size .ql-picker-label[data-value="huge"]::before,
  .ql-snow .ql-picker.ql-size .ql-picker-item[data-value="huge"]::before {
    content: "32px";
  }
  
  .ql-snow .ql-picker.ql-header .ql-picker-label::before,
  .ql-snow .ql-picker.ql-header .ql-picker-item::before {
    content: "文本";
  }
  .ql-snow .ql-picker.ql-header .ql-picker-label[data-value="1"]::before,
  .ql-snow .ql-picker.ql-header .ql-picker-item[data-value="1"]::before {
    content: "标题1";
  }
  .ql-snow .ql-picker.ql-header .ql-picker-label[data-value="2"]::before,
  .ql-snow .ql-picker.ql-header .ql-picker-item[data-value="2"]::before {
    content: "标题2";
  }
  .ql-snow .ql-picker.ql-header .ql-picker-label[data-value="3"]::before,
  .ql-snow .ql-picker.ql-header .ql-picker-item[data-value="3"]::before {
    content: "标题3";
  }
  .ql-snow .ql-picker.ql-header .ql-picker-label[data-value="4"]::before,
  .ql-snow .ql-picker.ql-header .ql-picker-item[data-value="4"]::before {
    content: "标题4";
  }
  .ql-snow .ql-picker.ql-header .ql-picker-label[data-value="5"]::before,
  .ql-snow .ql-picker.ql-header .ql-picker-item[data-value="5"]::before {
    content: "标题5";
  }
  .ql-snow .ql-picker.ql-header .ql-picker-label[data-value="6"]::before,
  .ql-snow .ql-picker.ql-header .ql-picker-item[data-value="6"]::before {
    content: "标题6";
  }
  
  .ql-snow .ql-picker.ql-font .ql-picker-label::before,
  .ql-snow .ql-picker.ql-font .ql-picker-item::before {
    content: "标准字体";
  }
  .ql-snow .ql-picker.ql-font .ql-picker-label[data-value="serif"]::before,
  .ql-snow .ql-picker.ql-font .ql-picker-item[data-value="serif"]::before {
    content: "衬线字体";
  }
  .ql-snow .ql-picker.ql-font .ql-picker-label[data-value="monospace"]::before,
  .ql-snow .ql-picker.ql-font .ql-picker-item[data-value="monospace"]::before {
    content: "等宽字体";
  }
  </style>
  